Symfony FK约束问题

时间:2010-05-23 20:20:36

标签: php mysql symfony1 doctrine yaml

所以我有一个表模式,其中包含可以成为朋友的用户。

User:
  actAs: { Timestampable: ~ }
  columns:
    name: { type: string(255), notnull: true }
    email: { type: string(255), notnull: true, unique: true }
    nickname: { type: string(255), unique: true }
    password: { type: string(300), notnull: true }
    image: { type: string(255) }

FriendsWith:
  actAs: { Timestampable: ~ }
  columns:
    friend1_id: { type: integer, primary: true }
    friend2_id: { type: integer, primary: true }
  relations:
    User: { onDelete: CASCADE, local: friend1_id, foreign: id }
    User: { onDelete: CASCADE, local: friend2_id, foreign: id }

它正确构建数据库,但是当我尝试插入测试数据时:

User:
  user1:
    name: Danny Gurt
    email: comy19@gmail.com
    nickname: danny
    password: test1
  user2:
    name: Adrian Soian
    email: adriansoian@gmail.com
    nickname: adrian
    password: test1

FriendsWith:
  friendship1:
    friend1_id: user1
    friend2_id: user2

我遇到了这个完整性约束问题:

  SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`krowdd`.`friends_with`, CONSTRAINT `friends_with_ibfk_1` FOREIGN KEY (`friend1_id`) REFERENCES `user` (`id`) ON DELETE CASCADE)  

有什么想法吗?

此外:

我注意到生成的sql代码只显示了friends_with表的一个约束:

ALTER TABLE friends_with ADD CONSTRAINT friends_with_friend2_id_user_id FOREIGN KEY (friend2_id) REFERENCES user(id) ON DELETE CASCADE;

也许这会有所帮助!

谢谢!

1 个答案:

答案 0 :(得分:2)

以不同方式命名FriendsWith表中的关系,以便Doctrine可以正确使用它们:

relations:
  User1:   { onDelete: CASCADE, local: friend1_id, foreign: id, foreignAlias: Friend1 }
  User2:   { onDelete: CASCADE, local: friend2_id, foreign: id, foreignAlias: Friend2 }

这些数字可能不是关系的最佳名称,但你明白了。

更新 - 代码:

这应该可以帮到你 - 请注意我在User表中添加了关系,而不是FriendsWith表:

relations:
  Friend1:  {class: FriendsWith, local: id, foreign: friend1_id, type: many, foreignType: one, foreignAlias: User1, onDelete: CASCADE}
  Friend2:  {class: FriendsWith, local: id, foreign: friend2_id, type: many, foreignType: one, foreignAlias: User2, onDelete: CASCADE}